• Please join our new sister site dedicated to discussion of gold, silver, platinum, copper and palladium bar, coin, jewelry collecting/investing/storing/selling/buying. It would be greatly appreciated if you joined and help add a few new topics for new people to engage in.

    Bullion.Forum

Non-Chemical Pouring exactly 1 troy ounce at a time

Gold Refining Forum

Help Support Gold Refining Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Status
Not open for further replies.
Harold said:
While I am not the least bit familiar with tantalum, I am of the opinion it, too, would be a huge mistake. It may not fracture from thermal stress, but it surely would be problematic in the way of contamination, and most likely soldering.

You're right, Harold. The gold would stick tight to the Ta. When I mentioned using Ta, I was using some ridiculous sarcasm. I knew it wouldn't work and probably shouldn't have said what I did. I have refined a few batches of Ta boats that were used to evaporate gold in a bell jar. The gold was always stuck tight to the Ta.
 
I have a bell jar with a vacuum system and electrical heaters. It is a vacuum evaporator for adding metals or carbon to a sample before observing it in a electron microscope.
I got it for that purpose but I always toyed with the idea of creating a small graphite boat and melt silver and gold in vacuum via resistive heating the boat.

When I get the system up and running I'll make some tests. Right now it is sitting in my storage behind a couple of boxes full of electronic scrap. I'll have to go through that first. Then I also might have something to melt. :lol:
Don't expect any results before the end of this year.

/Göran
 
I use those sputter systems quite frequently. I think you'd have to rework the power supply though :-/
 
This is not a sputtering system, it is a carbon evaporator. It has a power supply capable of delivering 300A of current into a carbon rod (I think that was what the meter could show).
To deposit gold and other metals you use a small tantalum boat, molybdenum boat or wolfram wire and heat the metal until it evaporates.

But I haven't used the system yet, I got it last year but haven't had the time to set it up yet so I might be wrong in how it is used.

I would like to have one of those nice bench top sputtering systems. This beast is a 200 kg machine with vacuum pumps and transformer. Sputtering systems uses RF and ionized gas to knock gold atoms off a target and deposit it on the specimen.
I guess that is what you are talking about as you call it a sputter.

To rework the power supply shouldn't be too hard if I need to. I have rebuilt my TEM from single phase supply (needed 20A 220V) to run off three phase power. If I had gone past 16A the fuse would have blown.

My pet TEM project, sorry for the missing pictures. I'll add it back asap, I had a server crash a month ago :(.

/Göran
 
Göran,

I'm sorry that I didn't read your post more clearly--I just assumed that you had found an old sputter setup and didn't know how it worked :-/ I know exactly what you are speaking of now. In fact, several weeks ago I was making an experiment that required just such a technique :)

I also am messing around, but with me it is an SEM. I do occasional (S)TEM, AFM, etc at work, so maybe we can have some conversations on your microscope!
 
Wow, I just have to say that you guys, Harold, GSP, Steve, etc are certainly a wealth of knowledge!

My hat goes off to all of you for sharing your knowledge with us youngins! ok, I'll bet most of us are middle-aged (I'm 40)... but my knowledge on this stuff certainly qualifies me as a youngin compared to you folks!

thanks again guys!
Mike B
 
Lou said:
Göran,

so maybe we can have some conversations on your unit!


You might consider editing your choice of words Lou 8)

Instead of trying to pour 1 oz ingots I would suggest coining them or rather die striking them from a known size planchet of 1 oz. There are many mints that are very slow right now that will take your gold and make a custom coin or ingot to your specs and design- Way less than trying to buy the equipment and learn the process yourself.
 
Well that explains why he never replied. I suppose when you tell someone you want to have a conversation on his unit and you're not an endocrinologist, it tends to send the wrong message.
 
Well, I never replied as the forum was down for a while and then I forgot about it until now. Actually I wrote a long answer but I couldn't post it then.
Right now I'm late for a job and the vacuum evaporator is buried behind a ton of computer scrap. It will be a couple of months before I can even get to the front panel to read some data of it.

Now I have to run to the job... too much fun things to do and so little time. See you later! :lol:

/Göran
 
Ok Harold, here's my attempt.

You melt the gold slightly over weight and cast the ingot. Then file the ingot to the desired weight. Then run the torch over the file marks to blend them in with the rest of the ingot. An alternative method would be to polish or buff the marks away though it would much more time consuming and you run the risk of going underweight.

So what do you think? Do I win the prize? Is there a a prize? There should be....like a free bag of cookies or something.

Al
 
I agree. No cookies.

Running a torch on a gold ingot to blend marks works about as well as a pig on stilts.

Harold
 
Barren Realms 007 said:
Harold_V said:
I agree. No cookies.

Running a torch on a gold ingot to blend marks works about as well as a pig on stilts.

Harold

What??? Now you are going to start about the pigs. :roll:
Barbequed, they're delicious. Second best only to lamb. :lol:

H
 
Harold_V said:
viacin said:
Why refine at all? Why not simply buy scrap from Point A and sell it to us refiners at Point B for your profit?
It all depends on one's objective, eh?

It may come as a surprise to readers, but I refined gold for more than nine years before I sold as much as a grain. My interest was not in making money, but in owning gold. I already had a good income and had enough money to cover my needs, which are small. I do not buy a new car because the neighbor does. I dictate the terms of my life, I do not allow his choices to influence mine.

When I started refining, it was illegal to do so without a federal license. Screw them, I said to myself. That sounds like way, way, way too much government control. I'll just figure this thing out on my own and refine, storing gold for my retirement.

By the time I started selling gold, I was well recognized as a gold refiner and had a strong following. All restrictions on processing and possessing gold were eliminated on Jan. 1, 1975, which allowed me to be vocal about my hobby-----a hobby that was virtually unheard of because of previous regulations. I was in the right place at the right time for a business to blossom, although that was never my intention.

Selling for spot was no big deal, a simple phone call to given customers and it was gone. The customer got a good deal because they bought for spot----which they, otherwise, were unable to do.

So then, the objective of each individual is what matters.

I have little patience with the guy that thinks he will stride into a situation, grab all the values and dump them in the lap of a refiner, making a killing in the process. These morons usually do little more than muddy the water for those that have good intentions. If any of the readers of this forum think they're going to skin a fat lamb by dealing in precious metals, they're in for the surprise of their lives. The precious metal market is exceedingly fickle. I sat watching the gold market for more than 20 years, with many of them with gold in the $300 arena. In those twenty years, I saw it run up to $500 and fall back, often well below the price of production.

You doubt my comment about a fickle market? How then would you account for the price of rhodium----which was over $10,000 not too long ago?

Bottom line? If you are interested in being a refiner, it is important to serve the needs of your primary customers. If they are people that deal with ingots, that's what you must provide. If you rely on a second or third party to provide them, your chance of survival is small---for you'll make little money, if any, and if you cheat the customer to insure profit you won't last long enough to make it worthwhile. One unhappy customer can do more damage to one's reputation than can be healed with hard effort and a prolonged period of time.

The choice is yours. Become a refiner, or find a different way to find entertainment. Or------simply stay the course and refine for your own pleasure, with no idea in mind of making profit. That way anything that comes from your activity can be looked upon as having made a dime.

An added thought; the idea of hitting garage sales, flea markets and all the other sources you can conjure is a waste of time. That's not to say you can't, and won't, find the odd bit of precious metal. You will, but you can't make it a living.

I snickered time and again as I talked with one of my customers, a prospector that had undying devotion. I accumulated more gold in two weeks than he did in a year, simply be refining for others for a percentage. There's nothing like going out looking for gold to put in focus the reason why it sells for the price it enjoys. It's damned hard to come by, be it via e scrap, where you put in a huge amount of labor, or by prospecting, which may never pay dividends. You have to use wisdom to make this thing work----with the niche market Lou spoke of the biggest part of success.

Harold


Wow is all i can say. I am traped im my house here in Texas most months of the year.
and it is because of my health . there for i look for things to do while it is hot out side . gold just sould like something to take up time consuming for me to play with to eat up the time and reading your post tells me that you have done your time and know what you are talking about . Im a nube so if you resond back it take time for me to fine it lol

Eric
 
Eric,
If you have time on your hands, and a source of e scrap, you may just be the rare candidate I would encourage for making a few bucks, or at least putting away a few ounces of gold. Nice thing about it is you can watch TV or listen to music as you dismantle old gear and accumulate lots that will be processed when you can venture out of doors. Better yet, you may even find a small pump shed sized building that can serve as your tiny refinery, and you can work there year round, assuming you can cool the place in the summertime.

I don't normally encourage folks where e scrap is concerned, assuming they have a business in mind. You can work yourself to death refining e scrap and not make much money, but for a guy that has time on his hands, it's a great way to spend a few days each week. Sort of gives you something to get up for in the morning, and there's nothing quite like holding that first button of gold, particularly if you've never held elements that are heavier than lead.

Remember, of all the elements we accept as metals, all are various shades of silver in color. Gold and copper stand alone, each having their own unique color. You will work with both of them in refining.

Study the forum, and get a copy of Hoke's book. Be patient. None of this comes fast and easy, although none of it is difficult once you understand the processes involved. If you can follow directions, you should be able to refine to perfection.

Luck!

Harold
 
That is spot on Harold.

Refining e-scrap is a loosing proposition as a business unless you are doing large quantities. Having said that I will run electronics if I get the material for free and have no other work that pays at the moment. With the economy as it is it is better to make a $ an hour than to make nothing watching cable TV. When all else fails, just stay busy.
 
With only one exception that I can think of, I can see no way that anyone could profit from refining e-scrap by using any process that would chemically dissolve the base metals. There are many reasons for this - huge waste generation, huge chemical usage, fume control, large amount of equipment and space needed, labor, etc. The exception is running high grade materials, such as old, all-gold CPU packages or CPU package lids that contain gold solder. At this state of the economy, I would define "high grade" as anything that was worth at least $200-$300 per pound in gold content.

Professional refiners NEVER dissolve the base metals in e-scrap except for the exception I noted above. They know better. They incinerate everything and then ball mill and screen the ash. The metal, which doesn't go through the screen, is melted and cast into bars. Both the pulps (the ash that goes through the screen) and the bars are sampled, assayed, and shipped to a primary copper smelted for refining.

Many refiners strip the gold plating on certain materials using cyanide and an oxidizer. Thus far, I know of no other substitute for cyanide that can be used in this way. However, for certain, very limited types of parts, the sulfuric electrolytic cell can be made to run profitably.
 
Status
Not open for further replies.

Latest posts

Back
Top